Home / 11,692.69-16,136.26-6,387.85

Finding the Fourth Proportional to 11,692.69, 16,136.26 and 6,387.85

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Solution

The fourth proportional to 11,692.69, 16,136.26 and 6,387.85 is: 8,815.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,692.69 : 16,136.26 = 6,387.85 : x
  2. Step 2: Convert to fraction form
    11,692.69/16,136.26 = 6,387.85/x
  3. Step 3: Cross multiply
    11,692.69x = 16,136.26 × 6,387.85
  4. Step 4: Simplify right side
    11,692.69x = 103,075,957.81
  5. Step 5: Solve for x
    x = 103,075,957.81/11,692.69
  6. Step 6: Final answer
    x = 8,815.42

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.